增加左侧导航图标

src/router/index.js

@@ -489,7 +489,7 @@ export const constantRoutes = [
     component: Layout,
     redirect: "/basic_setup/index",
     name: "basic_setup",
-    meta: { title: "基本设置", role: [5, 99] },
+    meta: { title: "基本设置", role: [5, 99], icon: "el-icon-setting" },
     children: [
       {
         path: "index",